Merge pull request #2598 from overleaf/sk-upgrade-mongoose-4.13.19

Upgrade mongoose to 4.13.19

GitOrigin-RevId: 73c111d5d351a16efc01738e2148e9ab5daf4541

services/web/package.json

@@ -81,7 +81,7 @@
     "mocha": "^6.2.2",
     "moment": "^2.24.0",
     "mongojs": "2.4.0",
-    "mongoose": "4.11.4",
+    "mongoose": "^4.13.19",
     "multer": "git+https://github.com/overleaf/multer.git",
     "node-html-encoder": "0.0.2",
     "nodemailer": "2.1.0",